CN206740268U - A kind of temperature alarm system for steam sootblower - Google Patents
A kind of temperature alarm system for steam sootblower Download PDFInfo
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Abstract
本实用新型涉及一种用于蒸汽吹灰器的温度报警系统，包括安装在蒸汽吹灰器中的测温热电偶，测温热电偶采集蒸汽吹灰器的温度数据通过无线温度变送器发送至控制终端，控制终端具有报警器，用于监测蒸汽吹灰器内部温度超出报警值时，发出报警信号。本实用新型通过将热电偶一端连接在提升阀后部连接管上，测得的温度数据传送至无线变送器，通过无线变送器发送到控制终端，供运行人员参考。
The utility model relates to a temperature alarm system for a steam soot blower, comprising a temperature measuring thermocouple installed in the steam soot blower, and the temperature measuring thermocouple collects temperature data of the steam soot blower and sends it through a wireless temperature transmitter To the control terminal, the control terminal has an alarm, which is used to monitor when the internal temperature of the steam sootblower exceeds the alarm value and send out an alarm signal. In the utility model, one end of the thermocouple is connected to the connecting pipe at the rear of the poppet valve, and the measured temperature data is transmitted to the wireless transmitter, and then sent to the control terminal through the wireless transmitter for reference by the operating personnel.
Description
技术领域technical field
本实用新型涉及电力设备相关技术领域，具体的说涉及一种火电厂用蒸汽吹灰器的温度报警系统。The utility model relates to the related technical field of electric power equipment, in particular to a temperature alarm system of a steam soot blower used in a thermal power plant.
背景技术Background technique
电站锅炉在运行过程中，受热面积灰、结焦是最常见的现象，积灰、结焦将导致受热面传热系数降低，造成锅炉效率降低和能源的浪费。蒸汽吹灰器主要用于火力发电厂受热面的积灰清理，其原理是利用一定压力、温度的蒸汽吹扫受热面，清理受热面表面堆积的松散积灰。 蒸汽吹灰器主要由大梁、行走装置、吹灰枪管、阀门等部件组成。 During the operation of power plant boilers, dust and coking on the heating area are the most common phenomena. Ash accumulation and coking will reduce the heat transfer coefficient of the heating surface, resulting in reduced boiler efficiency and waste of energy. The steam soot blower is mainly used for cleaning the ash on the heating surface of the thermal power plant. Its principle is to use steam with a certain pressure and temperature to blow the heating surface and clean the loose ash accumulated on the surface of the heating surface. The steam soot blower is mainly composed of girders, traveling devices, soot blowing barrels, valves and other components.
相对于声波吹灰器、激波吹灰器，蒸汽吹灰器的吹灰效果较为稳定，应用最为广泛。但是在使用过程中也存在卡涩、失灵、漏气等现象。蒸汽吹灰器泄漏会造成受热面吹损、能源浪费等后果，影响机组的安全经济运行。Compared with sonic soot blowers and shock wave soot blowers, steam soot blowers have a more stable soot blowing effect and are most widely used. However, there are also phenomena such as jamming, failure, and air leakage during use. Leakage of the steam soot blower will cause damage to the heating surface and waste of energy, which will affect the safe and economical operation of the unit.
由于吹灰器安装在锅炉内部，通过肉眼难以发现泄漏部位，需要借助温度、流量等参数的变化来反应吹灰器是否存在泄漏。每台机组安装的吹灰器数量众多，通过人员巡视检查是否泄漏也存在很大困难。Since the sootblower is installed inside the boiler, it is difficult to find the leakage site with the naked eye. It is necessary to use changes in parameters such as temperature and flow to reflect whether the sootblower is leaking. There are a large number of sootblowers installed in each unit, and it is also very difficult to check whether there is leakage through personnel inspection.
目前有吹灰器厂家利用温度测量技术，将蒸汽内管与提升阀连接处的管壁上设置测温热电偶，测温热电偶的信号输出端通过电缆与控制箱的信号输入端进行连接。这一方式可以发现吹灰器是否存在泄漏，但是控制箱安装在吹灰器附近，仍然需要巡检人员现场查看。At present, some soot blower manufacturers use temperature measurement technology to install a temperature measuring thermocouple on the pipe wall at the junction of the steam inner pipe and the poppet valve. The signal output end of the temperature measuring thermocouple is connected to the signal input end of the control box through a cable. This method can find out whether the sootblower is leaking, but the control box is installed near the sootblower, and inspection personnel still need to check it on site.
实用新型内容Utility model content
本实用新型的目的是为克服上述现有技术的不足，提供一种能够利用无线测温技术，将温度信号直接传递到集中控制室的装置。本实用新型通过将热电偶一端连接在提升阀后部连接管上，测得的温度数据传送至无线变送器，通过无线变送器发送到控制终端，供运行人员参考。The purpose of this utility model is to overcome the shortcomings of the above-mentioned prior art and provide a device that can use wireless temperature measurement technology to directly transmit temperature signals to the centralized control room. In the utility model, one end of the thermocouple is connected to the connecting pipe at the rear of the poppet valve, and the measured temperature data is transmitted to the wireless transmitter, and then sent to the control terminal through the wireless transmitter for reference by the operating personnel.
本实用新型采用下面的技术方案：The utility model adopts the following technical solutions:
一种用于蒸汽吹灰器的温度报警系统，包括安装在蒸汽吹灰器中的测温热电偶，测温热电偶采集蒸汽吹灰器的温度数据通过无线温度变送器发送至控制终端，控制终端具有报警器，用于监测蒸汽吹灰器内部温度超出报警值时，发出报警信号。A temperature alarm system for a steam soot blower, including a temperature measuring thermocouple installed in the steam soot blower, the temperature measuring thermocouple collects the temperature data of the steam soot blower and sends it to the control terminal through a wireless temperature transmitter, The control terminal has an alarm, which is used to monitor when the internal temperature of the steam soot blower exceeds the alarm value and send out an alarm signal.
进一步的，在所述无线温度变送器与控制终端之间设置至少一个中继装置，无线温度变送器通过所述中继装置与控制终端通信。Further, at least one relay device is set between the wireless temperature transmitter and the control terminal, and the wireless temperature transmitter communicates with the control terminal through the relay device.
进一步的，所述测温热电偶固定连接在蒸汽吹灰器的提升阀后部之蒸汽内管外壁上。Further, the temperature measuring thermocouple is fixedly connected to the outer wall of the inner steam pipe at the rear of the poppet valve of the steam soot blower.
进一步的，所述无线温度变送器包括温度传感器、数据处理装置以及无线通信装置，所述测温热电偶的输出连接温度传感器的输入。Further, the wireless temperature transmitter includes a temperature sensor, a data processing device and a wireless communication device, and the output of the temperature measuring thermocouple is connected to the input of the temperature sensor.
进一步的，所述温度传感器的输入具有夹持式连接头。Further, the input of the temperature sensor has a clamping connector.
进一步的，所述测温热电偶包括测温芯体，在所述测温芯体外表面涂有防腐蚀涂层。Further, the temperature-measuring thermocouple includes a temperature-measuring core, and an anti-corrosion coating is coated on the outer surface of the temperature-measuring core.
进一步的，所述无线温度变送器具有ID模块，用于标识与所述无线温度变送器相连的测温热电偶，并将标识信息发送至控制终端。Further, the wireless temperature transmitter has an ID module, which is used to identify the temperature measuring thermocouple connected to the wireless temperature transmitter, and send the identification information to the control terminal.
进一步的，所述中继装置具有至少一个无线收发单元，多个无线收发单元的通信频域互不相同。Further, the relay device has at least one wireless transceiver unit, and the communication frequency domains of the multiple wireless transceiver units are different from each other.
进一步的，所述中继装置具有存储单元，用于对所述温度数据进行保存。Further, the relay device has a storage unit for storing the temperature data.
进一步的，所述报警器采用声光报警单元。Further, the alarm adopts an audible and visual alarm unit.
本实用新型的有益效果：The beneficial effects of the utility model:
本实用新型可以实时监控吹灰器的泄漏情况，在吹灰器内管温度超过报警值时可以第一时间以报警的方式提醒运行人员，避免吹灰器泄漏对受热面的吹损和蒸汽能量的浪费。The utility model can monitor the leakage of the soot blower in real time, and when the temperature of the inner tube of the soot blower exceeds the alarm value, the operating personnel can be alerted in the form of an alarm at the first time, so as to avoid the damage of the soot blower to the heating surface and the steam energy caused by the leakage of the soot blower waste.
同时对测温热电偶进行了防腐蚀保护，当测温热电偶经过长期使用，需要更换时，可以通过夹持式连接头更方便地进行更换。At the same time, the temperature measuring thermocouple is protected against corrosion. When the temperature measuring thermocouple needs to be replaced after long-term use, it can be replaced more conveniently through the clip-type connector.
本实用新型中的中继装置具有多个无线收发单元，当其中一个发生故障或者通信频域堵塞时，可以采用其他的无线收发单元进行通信工作。且本实用新型的无线收发单元具有存储单元，可以对温度数据进行备份，有利于后期维护。The relay device in the utility model has a plurality of wireless transceiver units, and when one of them fails or the communication frequency domain is blocked, other wireless transceiver units can be used for communication work. Moreover, the wireless transceiver unit of the present invention has a storage unit, which can back up the temperature data, which is beneficial to later maintenance.
附图说明Description of drawings
图1是本实用新型的系统图。Fig. 1 is a system diagram of the utility model.
具体实施方式：detailed description:
下面结合附图与实施例对本实用新型作进一步说明：Below in conjunction with accompanying drawing and embodiment the utility model is further described:
应该指出，以下详细说明都是例示性的，旨在对本申请提供进一步的说明。除非另有指明，本文使用的所有技术和科学术语具有与本申请所属技术领域的普通技术人员通常理解的相同含义。It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
需要注意的是，这里所使用的术语仅是为了描述具体实施方式，而非意图限制根据本申请的示例性实施方式。如在这里所使用的，除非上下文另外明确指出，否则单数形式也意图包括复数形式，此外，还应当理解的是，当在本说明书中使用术语“包含”和/或“包括”时，其指明存在特征、步骤、操作、器件、组件和/或它们的组合。It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and/or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and/or combinations thereof.
本实用新型的一种典型实施例如图1所示：一种用于蒸汽吹灰器的温度报警系统，包括安装在蒸汽吹灰器中的测温热电偶，测温热电偶采集蒸汽吹灰器的温度数据通过无线温度变送器发送至控制终端，控制终端具有报警器，用于监测蒸汽吹灰器内部温度超出报警值时，发出报警信号。测温热电偶安装在提升阀后的蒸汽内管外壁上，采用点焊方式，固定连接。无线温度变送器与热电偶连接，热电偶采集的温度数据通过转换后，将数据信号传递至集中控制室的控制终端。如果吹灰器与集中控制室距离较远，无线温度变送器与集中控制室之间需要设置一个或者多个中继器，以保证数据传输的稳定性。A typical embodiment of the utility model is shown in Figure 1: a temperature alarm system for a steam soot blower, including a temperature measuring thermocouple installed in the steam soot blower, and the temperature measuring thermocouple collects the temperature of the steam soot blower The temperature data is sent to the control terminal through the wireless temperature transmitter, and the control terminal has an alarm to monitor when the internal temperature of the steam soot blower exceeds the alarm value and send out an alarm signal. The temperature measuring thermocouple is installed on the outer wall of the steam inner pipe behind the poppet valve, and is fixedly connected by spot welding. The wireless temperature transmitter is connected with the thermocouple, and the temperature data collected by the thermocouple is converted, and the data signal is transmitted to the control terminal in the centralized control room. If the sootblower is far away from the centralized control room, one or more repeaters need to be set between the wireless temperature transmitter and the centralized control room to ensure the stability of data transmission.
无线温度变送器包括温度传感器、数据处理装置以及无线通信装置，所述测温热电偶的输出连接温度传感器的输入。The wireless temperature transmitter includes a temperature sensor, a data processing device and a wireless communication device, and the output of the temperature measuring thermocouple is connected to the input of the temperature sensor.
进一步的，作为对上述实施例的一种改进，温度传感器的输入具有夹持式连接头。由于测温热电阻为易耗品，需要更换时，可以通过夹持式连接头更方便地进行更换。Further, as an improvement to the above embodiment, the input of the temperature sensor has a clip-on connector. Since the temperature measuring thermal resistance is a consumable item, when it needs to be replaced, it can be replaced more conveniently through the clip-type connector.
且测温热电偶在高温环境下容易受到还原性气体的腐蚀，我们对测温热电偶进行的防腐蚀操作，即在测温热电偶的测温芯体外表面涂有防腐蚀涂层。And the temperature measuring thermocouple is easily corroded by reducing gas in a high temperature environment. Our anti-corrosion operation for the temperature measuring thermocouple is to coat the outer surface of the temperature measuring core of the temperature measuring thermocouple with an anti-corrosion coating.
进一步的，无线温度变送器具有ID模块，用于标识与所述无线温度变送器相连的测温热电偶，并将标识信息发送至控制终端。Further, the wireless temperature transmitter has an ID module, which is used to identify the temperature measurement thermocouple connected to the wireless temperature transmitter, and send the identification information to the control terminal.
这一设计有利于在控制终端辨别蒸汽吹灰器的ID，快速定位蒸汽吹灰器。This design is conducive to identifying the ID of the steam soot blower at the control terminal and quickly locating the steam soot blower.
进一步的，中继装置具有至少一个无线收发单元，多个无线收发单元的通信频域互不相同。Further, the relay device has at least one wireless transceiver unit, and the communication frequency domains of the multiple wireless transceiver units are different from each other.
本实用新型中的中继装置具有多个无线收发单元，当其中一个发生故障或者通信频域堵塞时，可以采用其他的无线收发单元进行通信工作The relay device in the utility model has multiple wireless transceiver units, when one of them breaks down or the communication frequency domain is blocked, other wireless transceiver units can be used for communication work
进一步的，中继装置具有存储单元，用于对所述温度数据进行保存。Further, the relay device has a storage unit for saving the temperature data.
本实用新型的无线收发单元具有存储单元，可以对温度数据进行备份，有利于后期维护。The wireless transceiver unit of the utility model has a storage unit, which can back up temperature data, which is beneficial to later maintenance.
报警器可以采用声光报警单元，但不限于上述方式。The alarm can use an audible and visual alarm unit, but is not limited to the above methods.
本实用新型可以实时监控吹灰器的泄漏情况，在吹灰器内管温度超过报警值时可以第一时间以报警的方式提醒运行人员，避免吹灰器泄漏对受热面的吹损和蒸汽能量的浪费。The utility model can monitor the leakage of the soot blower in real time, and when the temperature of the inner tube of the soot blower exceeds the alarm value, the operating personnel can be alerted in the form of an alarm at the first time, so as to avoid the damage of the soot blower to the heating surface and the steam energy caused by the leakage of the soot blower waste.
以上所述仅为本申请的优选实施例而已，并不用于限制本申请，对于本领域的技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。The above descriptions are only preferred embodiments of the present application, and are not intended to limit the present application. For those skilled in the art, there may be various modifications and changes in the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this application shall be included within the protection scope of this application.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113701176A (en) * | 2021-07-12 | 2021-11-26 | 华能国际电力股份有限公司德州电厂 | Liquid-cooled boiler steam soot blower system based on temperature early warning |
| CN113790458A (en) * | 2021-10-28 | 2021-12-14 | 国电内蒙古东胜热电有限公司 | Steam soot blower control terminal |
-
2017
- 2017-06-02 CN CN201720639155.9U patent/CN206740268U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113701176A (en) * | 2021-07-12 | 2021-11-26 | 华能国际电力股份有限公司德州电厂 | Liquid-cooled boiler steam soot blower system based on temperature early warning |
| CN113701176B (en) * | 2021-07-12 | 2024-01-19 | 华能国际电力股份有限公司德州电厂 | Liquid-cooled boiler steam soot blower system based on temperature early warning |
| CN113790458A (en) * | 2021-10-28 | 2021-12-14 | 国电内蒙古东胜热电有限公司 | Steam soot blower control terminal |
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